Use of lithium does not matter what time of the Foot sufficient, many parts of the tests show that the only harm no benefit, the general lack of electricity shut down as much as possible not to use it fully, as long as there is no electricity grid can charge, and enough power to 3 - -5 hours is appropriate, not more than five hours, or harmful to the battery, charging many times more than twelve hours will be greatly reduced and the life of lithium battery, standby time is reduced. As the memory of lithium itself is not strong, so long as a month or so can be fully discharged. Here just to talk about HO, but if sleep is difficult to grasp fully the time, especially as I sleep until such a great morning person. HOHO on the market today use the built-in lithium battery lithium in MP3 very much, because there is no replacement of batteries, So in a sense is more convenient. But the problem is also obvious that the life of lithium battery problems. I checked some of the information, they discovered that there are errors on the understanding of lithium batteries. Lithium and nickel-metal hydride batteries and nickel-cadmium batteries are not the same, he does not exist memory, the memory than nickel-metal hydride is even lower, but its charge is the most troublesome times, the life of lithium batteries, its charging cycle For complete times, what is the charge cycles? ? We take the 600 mA battery for example, is the total charge 600 mA 600 mA out of the process then that is a battery charge cycle means over all the power used by the air, and then by air to the full process of filling . An example of such "600 mAh lithium battery, the first time you charge by the 0 mA to 400 mA, with ah ah used with N mA; and then you charge the 150 mA, and then the N mA ; Finally, charge 100 mA, when the final charge to 50 mA, when a piece of the battery charge cycle is up. (400 +150 +50 = 600) "is referenced in the article. Each complete a charge cycle, the power will be reduced a little, lithium is generally the life of 300-500 charge cycles. In fact, the light put more light sufficient for the benefits of lithium, only the power supply module in the product to do the calibration for the lithium, the only deep deep release the necessary charge. Therefore, the use of lithium-powered products do not have to rigidly adhere to the process, all to facilitate first, charging at any time, without fear of life. So how do we come to the right where the battery? ? ? I think the most important thing is not to idle the battery so the battery is a great devastation, is difficult to save the lithium electrolyte, and, once solidified electrolyte can not be activated again (no matter how long the charge), mini-computer in my see such a table storage temperature of 40% of the charge state of state of charge of 100% 0 98% (year) 94% (year) 25 96% (year) 80% (year) 4085 % (year) 65% (one year) 60 75% (one year) 60% (one year) before we can see that if you save the smaller the charge of electricity, lower the temperature, the slower the loss of capacity. Therefore, the lithium battery to be charged as much as possible on the status of a cool place, not too full save. Here I quote another article, "and deep charge-discharge lithium-ion battery can improve the actual capacity? Experts clearly told me that this is meaningless. They even said that the so-called full charge and discharge using the first three of the" activation "in their knowledge of where the two doctors, could not understand what this is necessary. But why do so many people of deep charge-discharge capacity after the Battery Information in the label will change it? will be mentioned later. lithium-ion batteries are generally with management chip and charge control chips. which management chip in a series of registers, there is capacity, temperature, ID, charge status, and discharge times and other values. These values ??are in use will gradually change. I personally think that the instructions in the " using the full charge and discharge a month or so should be a "major role in the practice should be modified is the value of these registers in the wrong, making the battery charge control and battery nominal capacity consistent with the actual situation. charge control the main control chip, the battery charging process. Lithium-ion battery charging process is divided into two phases, fast charge constant current phase (the battery indicator light yellow) and constant current decline phase (the battery indicator light flashes green. constant current fast charge phase, the battery voltage is gradually increased The standard voltage to the battery, then under the control of the chip into the constant voltage, the voltage will not rise to ensure that no over-charge, current is increased gradually as the battery level reduced to 0, and the ultimate completion of charging. Statistics chip power consumption by recording the discharge curve (voltage, current, time) can calculate the sample battery power, this is what we read about in the Battery Information wh. value. The repeated use of lithium-ion battery, the discharge curve may change, If the chip has been no opportunity to once again read out a complete discharge curve, the calculated power is not accurate. so we need to calibrate the battery charge-discharge depth of the chip. "